Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 889 · 40 sums

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

1. 1.69 × 68 =
2. 2.86 × 86 =
3. 3.59 × 59 =
4. 4.293 × 294 =
5. 5.292 × 292 =
6. 6.594 × 594 =
7. 7.74 × 71 =
8. 8.493 × 494 =
9. 9.36 × 39 =
10. 10.56 × 56 =
11. 11.403 × 407 =
12. 12.29 × 28 =
13. 13.68 × 68 =
14. 14.29 × 27 =
15. 15.607 × 604 =
16. 16.33 × 32 =
17. 17.26 × 29 =
18. 18.83 × 81 =
19. 19.607 × 606 =
20. 20.308 × 302 =
21. 21.84 × 83 =
22. 22.299 × 298 =
23. 23.26 × 27 =
24. 24.73 × 73 =
25. 25.402 × 406 =
26. 26.204 × 203 =
27. 27.191 × 196 =
28. 28.49 × 48 =
29. 29.205 × 205 =
30. 30.48 × 49 =
31. 31.498 × 491 =
32. 32.305 × 301 =
33. 33.495 × 493 =
34. 34.18 × 18 =
35. 35.41 × 44 =
36. 36.44 × 43 =
37. 37.603 × 606 =
38. 38.67 × 68 =
39. 39.292 × 295 =
40. 40.37 × 39 =

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